Motor-driven tilling-machine.



N. C. STOREY.

MOTOR DRlVEN TILLING MACHINE.

APFLICATIGN FILED IAN. 8. i916.

Patented Dc. 19,1916.

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MOTOR DRIVEN TILLING MACHINE.

APPLICATION FILED mms. 191s.

1,268,856.. Patented De@.19,1916.

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NORMAN' G. 'STOREY, OF AGUIRRE; PORTO RICO.

MOTOB-DRIVEN TILLING-MAGHINE.

Lacasse. i'

) Specification of Letters Patent.

Application tiled January 1916. Serial -N o. 70,915.

To alllwwm t may concern.'

vBey it known that I, NORMAN` C. Swan?, a citizen ofthe United States,- residing y1n Aguirre, Porto Rico, West Indies, -have 1nvented certain new and useful 'Improvements in Motor-Driven rlilling-lldachines, of which the 4following is a specification, reference being had herein to the accompanyin drawings. l

`he object of my -invention is to provide a motor-driven tilling machine comprising a wheeled frame provlded with a motor and suitable propelling mechanism for the traetion wheels and one or more implement. carrying rotors carried by the frame. Each tilling implement is formed with a. front cutting edge, which is active as the implement moves in its circular path, and-also with a laterally bent cutting plate having an edge which is active when the implement is dragged laterally.

A second object of my invention is to form the tilling implement with a lower blade or share and an overlyingfearth-turning plate or mold board, and lto maintain the rotor in inclined relation to the frame so as to locate the path of the earth-turning plate or mold board substantially above the ground when the tilling implement is in its foremost position. y

A third object of my invention is to providea novel arrangement of the driving elements for my wheeled frame and rotor.

In the drawings Figure l is a side eleva.- tion of a machine embodying my improvements, the same being partly in section, and Fig. 2 is a plan view of the same. Fig. 3 is a bottom plan View of two connected rotors each carrying multiple tilling implements.

The main fra-me o the machine may be of any suitable construction, and in the present embodiment of the invention comprises the side plates A preferably .formed of steel and rigidly connected by means'of-cross-beams such as B, the frame being provided lwith alined apertured bosses 1 to receive the axle 2 for -thebroad tractionwheels The bub-I of each traction wheel has fixed thereon a gear wheel 4 engaged by a pinion 5 on the end of the short shaft 6 journaled within a boss 7 integral with each frame plate A, the shaft being driven by suitable connections with a motor carried by the frame, in the manner hereinafter described.

The motor designated by the letter M, Fig. 1, is supported upon the transverse frame-plate 8. The motor shaft 9 has fixed thereon the friction drum 10 adapted to be lengaged by the friction face of clutch wheel 11 keyed ona shaft 12 suitably journaled in.

Means are provided for driving the trac-v tionzwheels 3 at multispeeds and 'differentially. To this end each of the pinion-carryingshafts 6 has fixed thereon a gear-wheel 16 driven by a pinion 17, 17X, on differential shaft 18,18", extending transversely of and journaled in suitable bearings afforded by the frame. Differential shafts 18, 18x lead from a transmission 'lix having inclosed therewith a suitable diderential mechanism, the transmission being preferably of the automobile type of three speeds ahead and one speed reverse. The driving shaft 19 of transmission TX is provided with a pinion 20 meshing with a second pinion 21 on shaft 15 driven bythe motor.

Pivotally connected with the main frame by means of the pins '22 is the rotor frame F comprising the longitudinal bars 23, the cross bars 24 and the diamond-frame 25 connected with, and reinforced by, the said bars. Each point of the diamond-frame is formed with a bearin boss. The bearing bosses-26receive the s aftsof thetwo ro tors, R,-RX formed with the meshingv gear- Wheels, 1", 1'", gear wheel 7'* being driven by means of a pinion 27 carried b a. short shaft 28. Shaft-:28 rotates within oss-29 of the diamond-frame and has fixed thereon a beveled gear 30 meshing with a similar gear 31 1 ments 41,/42, each adjustably mounted upon a supporting beam 43 pivotally connected at 44 with the rotor frame F.

Each rotor, in the present embodiment of Patented Dec., 119, 11916..

f with projections beyond said plates to rei the invention, is provided with four tilling implements, each implement being formed with a front cutting edge f, a laterally eX- tending cutting face fx and an earth-turning plate or mold board m. The front cutting edge f of each implement is active as the latter moves in its circular path, and the laterally extending or outwardly bent cuttingface j* is active when the implement moves into extreme forward position and is dragged laterally by the machine. y

It will be seen that the weight of frame F, with its connected parts, will cause the rotors to assume the inclined position illustrated in Fig. l when the same are in action, the depth gage wheel 40 serving to maintain the desired inclination and to locate the path of the earth-turning plates m substantially above the uncut earth, when each implement in its rotation moves into forward position crosswise of the frame and is dragged laterally.

Motor-driven means are rovided for elevating the rotors and trenc iingimplements into and out of operative position. To this end pinion 20 on transmission driving shaft 19 meshes with gear 45 on a shaft 46 havin keyed thereon a clutch member 47 adapted to engage the friction face of a drum 48 keyed on a worm shaft 50. The said clutch members may be thrown into and out of action by any suitable shifting device. The

worm on shaft 50 operates a pinion 51 fast upon a sha-ft 52 journaled in the bearing bosses 53 on the frame plates A and formed ceive the crank disks 54, each disk being channeled at 54x to receive one of the two rotor lifting-chains 55 each of which is connected at its forward end with the. crank projection of one disk 54. Near its opposite end each chain 55 (one only being illustrated) lies within the channeled seat of a segment lever 56 fulcrumed at 57 upon frame plate A, and connected by link 58 with the rotor frame I?. Each segment lever 56 also is connected by means of a chain or the like, indicated at 59, with one of the trenching implements 41, so that by means of the clutch device 47, 48, both the implementcarrying rotorsand the trenching implements may be elevated above the ground when it is desired to transport the machine to or from a field.

The differential shafts 18, 18x enable the 55 operator to give a short turn to the machine when necessary, each shaft being provided with a brake drum 60 embraced by a brake band 61 which may be manipulated by any suitable means to reduce the speed of rotation of one shaft and hence to differentially change .the speed of rotation of the traction Wheels.

It will be understood that I do not limit myself to the precise embodiment'I of the invention herein described and illustrated. For instance, the earth deiiecting plate m of the tilling implements may be of any suitable form, .or may be dispensed with altogether; and blade or share of the implement may be laterally curved, as shown, or angularly bent, to insure its cutting action when given a sidewise movement.

What I claim and desire to secure by Letters Patent of the United States is 1. In a tilling machine, the combination with a frame provided with traction wheels, of a rotor and means for rotating the same, a tilling implement carried by the rotor and comprising a blade and an overhanging earth-turning plate, and connections between the frame and the rotor whereby the latter may be maintained in inclined relation to the frame and the path of movement of the earth-turning plate located above the ground when the tilling implement is in its foremost position with respect to the frame.

2. In a tilling machine, a revolving im- Y plement-carrying device mounted to operate signed my name in the presence of two sub- Y scribing witnesses.

NORMAN C. STOREY.

Witnesses:

FRANK L. I-IENNEssY, I C. P. DUNCAN. 

